Son foster



No. 750,387. PATENTED JAN. 26, 1904. A. S. NELSON, A. STEWART & T. J. POSTER. BOGIE 0R TRUCK FOR TRAMWAY CARS, RAILWAY GARRIAGES,

2 SHEETS-SHEET 1.

OR THE LIKE. APPLIOATION FILED JULY 1, 1902. no MODEL.

we norms vzrzns co morau'rno" WASHINGTON. n. a

No. 750,387. m PATENTED JAN. 26, 1904. A. S. NELSON, A. STEWART & T. J. FOSTER. BOGIE 0R TRUCK FOR TRAMWAY CARS, RAILWAY GARRIAGES,

. OR THE LIKE.

APPLICATION FILED JULY '7, 1902.

. 2 SHEETSSHEET.2.

TNE uonms PETERS c0. womumon WASHKNGYON. n. c.

7 UNITED STATES Patented January 26, 1904.

PATENT OFFICE.

ANDREW S. NELSON, ALBERT STEWART, AND THOMAS JOHNSON FOSTER,

OF MOTHERWELL, SCOTLAND.

BOGIE R TRUCK FOR TRAMWAY-CARS, RAILWAY-CARRIAGES, 0R THE LIKE.

SPECIFICATION forming part of Letters Patent No. 750,387, dated January 26, 1904.

Application filed July 7,1902. Seria1No.114,587. (No model.)

T0 aZZ whom it may concern.-

Be it known that we, ANDREW SoLANnnRs NnLsoN, ALBERT STEWART, and THOMAS J OHN SON FosTnR, subjects of the King of the United Kingdom of Great Britain and Ireland, all residing at The Glasgow Rolling Stock and Plant Works, Motherwell, in the county of Lanark, Scotland, have invented certain new and useful Improvements in Bogies or Trucks for Tramway Oars, Railway Carriages, or the Like, (for which application for patent has been made in Great Britain, No. 25,550, dated December 14, 1901,) of which the following is a specification.

This invention is applicable to bogies or trucks having four or more wheels, but especially to the type known as the maximum traction-truck, having the pivotal center in advance of a cross-bolster arranged so that the greater percentage of weight is carried upon the large wheels.

In the accompanying drawings, which illustrate the invention, Figure 1 is a side elevation, Fig. 2 a plan, and Fig. 3 a part crosssection taken at the line 1 1 of Fig. 1, showing part of the improved car-truck. Fig. i is a vertical longitudinal section through the springs F F and supporting-brackets.

As shown by the drawings, the invention consists of a bogic or truck having solid side bars A, of rolled angle or channel steel or iron, combined with separate horn-bars or pedestals B, of cast or pressed steel or iron, and having a cross-bolster O, of steel or ironbars, rigidly secured to the side bars A, used in conjunction with a swing-bolster D, of rolled steel or iron of bulb, T, or other section, carried upon brackets E and suspended from hearingsprings F, preferably of the conical spiral type, resting upon brackets G, secured to the rigid cross-bolster O and provided with checksprings F to prevent galloping.

The swing-bolster D is fitted with a pivotal center casting H and with side bearing-castings I, being thus arranged so that while always itself carried vertically to the body of the vehicle the bogie is free to rock, thus allowing the wheels to jump or ride over any slight obstruction or inequality in the track without injury to the pivotal center or other castings.

The bearing-springs F are arranged so that the swing-bolster D is freeto move with the body of the vehicle both vertically and transversely, thus doing away with the need for a separate spring-beam. Checks or stops J, of

rubber or other material, are provided to cushion the transverse movement of the bolster.

The axle-boxes K are provided with spiral bearing-springs L, preferably carried upon the top, and are in addition fitted with checksprings L, carried in a distance-piece L underneath the axle-box and bolted to the horn bars B, the object of which is to insure steady riding. The axle-boxes K are of the usual type, but are preferably fitted with rocking bearings 7c, of gun-metal, and removable oil-drawers k, which contain the lubricators.

To prevent the small wheels W jumping the track, a spring S is provided and carried in a cup on any convenient position on the carbody and bearing upon the cross-bar T of the truck.

Having now described our invention, what we claim, and desire to secure by Letters Patent, is

1. In a bogie or truck for tram-cars or like vehicles, the combination with solid angular side bars A, of separate pedestals B, a metallic cross-bolster O secured to said side bars A, a swing-bolster D, brackets E, secured to said swing-bolster D, brackets Gr secured to the cross-bolster O, bolts passing through said brackets G and connected to brackets E, nutsat the ends of said bolts and springs F interposed between said nuts and said brackets Gr, check springs F interposed between .said

brackets G and said brackets E, and a pivotal center casting H and side bearing-castings I fitted on said swing-bolster D as and for the purpose set forth.

2. In a bogie or truck for tram-cars or like vehicles, the combination with solid angular side bars A, of separate pedestals B, a metallic cross-bolster C secured to said side bars A, a swing-bolster D, brackets E, secured to said swing-bolster D, brackets Gr secured to the cross-bolster C, bolts passing through said brackets G and connected to brackets E, nuts at the ends of said bolts and springs F interposed between said nuts and said brackets Gr,

check springs F interposed between said brackets G and said brackets E, a pivoted center casting H and side bearing-castings fitted on said swing-bolster D, and checks J of rubber to cushion the transverse movement of the bolster.

3. In a bogie or truck for tram-cars or like vehicles, the combination with solid angular side bars A, of separate pedestals B, a metallic cross-bolster C secured to said side bars A, a swing-bolster D, brackets E secured to said swing-bolster D, brackets G secured to the cross-bolster C, bolts passing through said brackets G and connected to brackets E, nuts at the ends of said bolts and springs F interposed between said nuts and said brackets Gr,

check-springs F interposed between said brackets G and said brackets E, a pivoted center casting H and side bearing-castings fitted on said swing-bolster D, axle-boxes K, spiral bearing-springs L fitted on top, and checksprings L beneath said axle-boxes as and for the purpose set forth.

4. In a bogie or truck for tram-cars 'or like vehicles, the combination with solid angular side bars A, of separate pedestals B, a metallic cross-bolster C secured to said side bars A, a swing-bolster D, brackets E, secured to said swing-bolster D, brackets Gr secured to the cross-bolster C, bolts passing through said brackets G and connected to brackets E, nuts ANDREW S. NELSON. ALBERT STEWART. THOMAS JOHNSON FOSTER.

Witnesses:

WALLACE FAIRWEATHER, JOHN MORTON. 

